212 



R. FU.TISAWA. 



(139) 



then 



P2 = llrr^''^'> 



2r&r+\)rr+{rw'-{2r'- 1) ) Yr^, 



= {n^ - 2n\2r - 1) + (2/- - l)-)ßr-i - (»' - 2'- + 3)^»- - 2r + 2)ß,_^ 

 We find 



Tr 



n{n^—}) _ ??0''^— l)o;t 



8! 



, r2= ^ ; . ^ 2(2^1^-8), r3= - 



7! 



3(37i2-5), 



Generally, 



2r(2'>- + 1 )r, + {^)f- - (2r - 1 ?)rr-i 



\4>-'-\()r+r))n} 



^ ^ (2r— 1)! 



.+(2r-3)(2r-l) ) 



/-;•(/v^2-(2;■-l) ) (;i2_(2>--3)2) 



^ _ ,_,Mn^-^l),_X^^ 

 (27'— J) ! 



I ((r-l)»2-(2;--3)) 



= ^_l),.^K.^--l)...0.--(2>--5mn^-(2.-3)^^^ 



)) 



or. 



+(5,.^-(2.-i)^x-ir- "<"''''^,!!';;|''-'" (.--i) 



((»•-l)»'-(2,--3)), 



= _(5«»-(2,-i)', Qv-.-(-ir- "^"'-'^„':^-f'-"''' (.-i) 



((,-l)„2_C2,— 3))1; 



